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/*
* Copyright (C) 2014-2015 Andreas Steffen
* HSR Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#include "test_suite.h"
#include <bliss_private_key.h>
#include <bliss_public_key.h>
static u_int key_type[] = { 1, 3, 4 };
static u_int key_strength[] = { 128, 160, 192 };
START_TEST(test_bliss_sign_all)
{
signature_scheme_t signature_scheme;
private_key_t *privkey, *privkey1;
public_key_t *pubkey, *pubkey1;
chunk_t msg, signature, privkey_blob, pubkey_blob, pubkey_fp, privkey_fp;
int k;
for (k = 0; k < 4; k++)
{
int verify_count = 1000;
switch (k)
{
case 1:
signature_scheme = SIGN_BLISS_WITH_SHA2_256;
break;
case 2:
signature_scheme = SIGN_BLISS_WITH_SHA2_384;
break;
default:
signature_scheme = SIGN_BLISS_WITH_SHA2_512;
}
/* enforce BLISS-B key for k = 2, 3 */
lib->settings->set_bool(lib->settings,
"%s.plugins.bliss.use_bliss_b", k >= 2, lib->ns);
msg = chunk_from_str("Hello Dolly!");
/* generate private key */
privkey = lib->creds->create(lib->creds, CRED_PRIVATE_KEY, KEY_BLISS,
BUILD_KEY_SIZE, key_type[_i], BUILD_END);
ck_assert(privkey);
/* generate ASN.1 DER and PEM encoding of private key */
ck_assert(privkey->get_encoding(privkey, (k % 2) ?
PRIVKEY_ASN1_DER : PRIVKEY_PEM, &privkey_blob));
/* extract public key from private key */
pubkey = privkey->get_public_key(privkey);
ck_assert(pubkey);
/* generate ASN.1 DER and PEM encodings of public key */
ck_assert(pubkey->get_encoding(pubkey, (k % 2) ?
PUBKEY_SPKI_ASN1_DER : PUBKEY_PEM, &pubkey_blob));
/* compare fingerprints of public and private key */
ck_assert(pubkey->get_fingerprint(pubkey, (k % 2) ?
KEYID_PUBKEY_INFO_SHA1 : KEYID_PUBKEY_SHA1, &pubkey_fp));
ck_assert(privkey->get_fingerprint(privkey, (k % 2) ?
KEYID_PUBKEY_INFO_SHA1 : KEYID_PUBKEY_SHA1, &privkey_fp));
ck_assert(chunk_equals(pubkey_fp, privkey_fp));
/* retrieve fingerprints of public and private key from cache */
ck_assert(pubkey->get_fingerprint(pubkey, (k % 2) ?
KEYID_PUBKEY_INFO_SHA1 : KEYID_PUBKEY_SHA1, &pubkey_fp));
ck_assert(privkey->get_fingerprint(privkey, (k % 2) ?
KEYID_PUBKEY_INFO_SHA1 : KEYID_PUBKEY_SHA1, &privkey_fp));
/* get a reference of the private key and destroy both instances */
privkey1 = privkey->get_ref(privkey);
ck_assert(privkey1);
ck_assert(privkey1 == privkey);
privkey->destroy(privkey);
privkey1->destroy(privkey1);
/* get a reference of the public key and destroy both instances */
pubkey1 = pubkey->get_ref(pubkey);
ck_assert(pubkey1);
ck_assert(pubkey1 == pubkey);
pubkey->destroy(pubkey);
pubkey1->destroy(pubkey1);
/* enforce BLISS-B key for k = 1, 3 */
lib->settings->set_bool(lib->settings,
"%s.plugins.bliss.use_bliss_b", k % 2, lib->ns);
/* load private key from ASN.1 blob */
privkey = lib->creds->create(lib->creds, CRED_PRIVATE_KEY, KEY_BLISS,
BUILD_BLOB, privkey_blob, BUILD_END);
ck_assert(privkey);
ck_assert(privkey->get_type(privkey) == KEY_BLISS);
ck_assert(privkey->get_keysize(privkey) == key_strength[_i]);
chunk_free(&privkey_blob);
/* load public key from ASN.1 blob */
pubkey = lib->creds->create(lib->creds, CRED_PUBLIC_KEY, KEY_ANY,
BUILD_BLOB, pubkey_blob, BUILD_END);
ck_assert(pubkey);
ck_assert(pubkey->get_type(pubkey) == KEY_BLISS);
ck_assert(pubkey->get_keysize(pubkey) == key_strength[_i]);
chunk_free(&pubkey_blob);
/* generate and verify 1000 BLISS signatures */
while (verify_count--)
{
ck_assert(privkey->sign(privkey, signature_scheme, NULL, msg,
&signature));
ck_assert(pubkey->verify(pubkey, signature_scheme, NULL, msg,
signature));
free(signature.ptr);
}
privkey->destroy(privkey);
pubkey->destroy(pubkey);
}
}
END_TEST
START_TEST(test_bliss_sign_fail)
{
private_key_t *privkey;
public_key_t *pubkey;
chunk_t msg = chunk_empty, signature, encoding, fp;
/* generate non-supported BLISS-II private key */
privkey = lib->creds->create(lib->creds, CRED_PRIVATE_KEY, KEY_BLISS,
BUILD_KEY_SIZE, BLISS_II, BUILD_END);
ck_assert(!privkey);
/* generate non-supported BLISS-B-II private key */
privkey = lib->creds->create(lib->creds, CRED_PRIVATE_KEY, KEY_BLISS,
BUILD_KEY_SIZE, BLISS_B_II, BUILD_END);
ck_assert(!privkey);
/* generate supported BLISS-B-I private key */
privkey = lib->creds->create(lib->creds, CRED_PRIVATE_KEY, KEY_BLISS,
BUILD_KEY_SIZE, BLISS_B_I, BUILD_END);
ck_assert(privkey);
/* wrong private key encoding format */
ck_assert(!privkey->get_encoding(privkey, PUBKEY_PEM, &encoding));
/* wrong fingerprint encoding format */
ck_assert(!privkey->get_fingerprint(privkey, KEYID_PGPV4, &fp));
/* extract public key */
pubkey = privkey->get_public_key(privkey);
ck_assert(pubkey);
/* wrong private key encoding format */
ck_assert(!pubkey->get_encoding(pubkey, PRIVKEY_PEM, &encoding));
/* wrong fingerprint encoding format */
ck_assert(!pubkey->get_fingerprint(pubkey, KEYID_PGPV4, &fp));
/* encryption / decryption operation is not defined for BLISS */
ck_assert(!pubkey->encrypt(pubkey, ENCRYPT_UNKNOWN, chunk_empty, NULL));
ck_assert(!privkey->decrypt(privkey, ENCRYPT_UNKNOWN, chunk_empty, NULL));
/* sign with invalid signature scheme */
ck_assert(!privkey->sign(privkey, SIGN_UNKNOWN, NULL, msg, &signature));
/* generate valid signature */
msg = chunk_from_str("Hello Dolly!");
ck_assert(privkey->sign(privkey, SIGN_BLISS_WITH_SHA2_512, NULL, msg, &signature));
/* verify with invalid signature scheme */
ck_assert(!pubkey->verify(pubkey, SIGN_UNKNOWN, NULL, msg, signature));
/* corrupt signature */
signature.ptr[signature.len - 1] ^= 0x80;
ck_assert(!pubkey->verify(pubkey, SIGN_BLISS_WITH_SHA2_512, NULL, msg, signature));
free(signature.ptr);
privkey->destroy(privkey);
pubkey->destroy(pubkey);
}
END_TEST
Suite *bliss_sign_suite_create()
{
Suite *s;
TCase *tc;
s = suite_create("bliss_sign");
tc = tcase_create("sign_all");
test_case_set_timeout(tc, 30);
tcase_add_loop_test(tc, test_bliss_sign_all, 0, countof(key_type));
suite_add_tcase(s, tc);
tc = tcase_create("sign_fail");
tcase_add_test(tc, test_bliss_sign_fail);
suite_add_tcase(s, tc);
return s;
}
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